They are both open source, they are both Bitcoin only, Green has a Blockstream backing the wallet and Samourai is developed by privacy concious bitcoiners. I'm actually very happy with both of them but i just wanted to know what other people think.

For Lightning Network i use BlueWallet still because it's the easiest solution at the moment. I'm looking to use Bitcoin Lightning Wallet tho but i'm not yet 100% which Lightning wallet to use for mobile.

Bitcoin

Bitcoin is a distributed, worldwide, decentralized digital money. Bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. ​